Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zdenek LedrfiledCriticalZdenek Ledr
Priority to CS594077ApriorityCriticalpatent/CS190233B1/cs
Publication of CS190233B1publicationCriticalpatent/CS190233B1/cs
CS594077A1977-09-131977-09-13Electric wiring for indication of the voltage fall and loss on one to all phases of the supplying three-phase net
CS190233B1
(en)